Buddleja species ?- Atlanta, Georgia, USA


Garden plant seen at the ABG in October.
Could be Lantana Species?

If this were a Lantana it would have toothed margins.
Thanks for a quick response. Lets wait for more comments.
Look some Buddleja sp. Once compare with Buddleja alternifolia
For reference :
Buddleja alternifolia has alternate leaves; the plant in the images has opposite leaves. 

Thanks for the suggested id and pointing out the differences.
Hope to get it identified.